Abstract

The present invention provides bending apparatuses and methods that can form lithographic plates having different radii, such as for different printing press configurations, without the need to remove and replace the anvils on a bending apparatus. More particularly, the present invention provides bending apparatuses having integrated changeable anvils useable for forming bends having different radii.

IPC Classes  ?

• B21D 11/00 - Bending not restricted to forms of material mentioned in only one of groups , , Bending not provided for in groups Twisting

Abstract

The present invention provides methods and apparatuses for forming a mounting flange on a printing plate comprising first and second portions having an arcuate portion therebetween and defining a mounting flange angle. A bending device comprising a forming surface having a radius that is less than a desired radius for the arcuate portion can be used to form the arcuate portion in accordance with the present invention. This can be done by forming the arcuate portion to have a plurality of spaced apart bends that cooperatively define the arcuate portion.

IPC Classes  ?

• B21D 11/00 - Bending not restricted to forms of material mentioned in only one of groups , , Bending not provided for in groups Twisting